Barnstorming the Suborbital Science Frontier

byNancy AtkinsononFebruary 23, 2012

Who will really open up the space frontier? Just like the early days of airplanes, when ‘barnstormers’ traveled the country selling rides to the public, commercial space companies see the market as ripe with excited people who want to hitch a ride. In this video, scientists Alan Stern and Dan Durda describe the coming era of suborbital spaceflight and how it will open up great possibilities for researchers, educators, and the public beginning, perhaps, later this year.

“In all the 50 years of human spaceflight, there have been barely 500 people who’ve been launched into space,” says Stern. “We’re talking about launching thousands if not tens of thousands of space tourists every year and then researchers.”

Not really , getting into orbit involves becoming Newton’s cannonball which means going fast enough to stop you falling back down without using any fuel, you are still in space, you just need an engine to keep you there, just like an aircraft. Much as I would like the ISS rolling view of Earth I would be very nervous about having to decelerate from 25000 mph using aerobraking to get back home.

I disagree. From space tourism point of view, suborbital flight is made just by high altitude plane. Jump of the Earth and fall back to surface. While orbital flight is fundamentally different. In fact, there is far less difference between orbital flight and flight to the Moon, than suborbital and orbital, which has nothing in common. Except, both are crossing Karman line. I find difficult to name it spaceflight.

@suborbital flight is made just by high altitude plane@
Not true. As you point out, once you have crossed the 100km Kármán line you are in SPACE and Virgin Galactic is scheduled to reach 110km, by contrast the Lockheed blackbird high altitude plane only reaches 26km. A flight to any of the Lagrange points and back back would be sub-orbital, the fundamental difference is only speed. To achieve Earth orbit or Lunar insertion you need to reach the escape velocity of those bodies. To get off Earth and into space can be done at walking pace unless you want to go into orbit. The reason space tourism isn’t achieving orbit is the much higher energy cost of getting to those velocities.
We do agree on your last point though